| Election Name: | 1999 Wigan by-election |
| Country: | United Kingdom |
| Type: | parliamentary |
| Ongoing: | no |
| Previous Election: | 1997 United Kingdom general election |
| Previous Year: | 1997 |
| Next Election: | 2001 United Kingdom general election |
| Next Year: | 2001 |
| Election Date: | 23 September 1999 |
| Turnout: | 25% |
| Candidate1: | Neil Turner |
| Party1: | Labour Party (UK) |
| Popular Vote1: | 9,641 |
| Percentage1: | 59.6% |
| Swing1: | 9.0pp |
| Candidate2: | Tom Peet |
| Party2: | Conservative Party (UK) |
| Popular Vote2: | 2,912 |
| Percentage2: | 18.0% |
| Swing2: | 1.1pp |
| Party4: | Liberal Democrats (UK) |
| Popular Vote4: | 2,148 |
| Percentage4: | 13.3% |
| Swing4: | 3.3pp |
| Candidate5: | John Whittaker |
| Party5: | UK Independence Party |
| Popular Vote5: | 834 |
| Percentage5: | 5.2% |
| Swing5: | New |
| MP | |
| Before Election: | Roger Stott |
| After Election: | Neil Turner |
| Before Party: | Labour |
| After Party: | Labour |
The 1999 Wigan by-election of 23 September 1999 was held after the death of the incumbent Labour MP, Roger Stott.
The by-election was contested by nine candidates in total, with Labour selecting Neil Turner, who had been a local councillor for 27 years, to defend the seat. Meanwhile, the Conservatives chose Tom Peet, who was an active Trade Unionist and had worked at a nearby coal mine.
The result was a hold for the Labour Party, with Turner gaining 59.6% of the vote, in spite of a 5% swing to the Conservative Party.